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J. R". WHITING & W. A. LAWRENCE. PROCESS OF AND APPARATUS FOR DBODORIZINGF OILS. No. 583,779. Patented June 1, 1897.

(No Model) U ITED STATES PATENT. OFFICE.

JAMES R. WHITING, OF STAMFORD, CONNECTICUT, AND WILLIAM A.

LAWVRENOE, OF WATERVILLE, NEW YORK.

PROCESS OF AND APPARATUS FOR DEODORIZING OILS.

SPECIFICATION forming part of Letters Patent No. 583,779, dated June 1, 1897.

Application filed October 23, 1896. Serial No. 609,808. (No model.)

T 0 (tZZ- whom it may concern:

Be it known that we, JAMES R. WHITING, of Stamford, in the county of Fairfield and State of Connecticut, and WILLIAM A. LAW- RENCE, of \Vaterville, in the county of Oneida and State of New York, have invented a new and Improved Process of andApparatus for Deodorizing Oils, of which the following is a full, clear, and exact description.

This invention relates particularly to a process and apparatus for refining and deodorizing the lighter products of petroleum.

That the object and usefulness of our invention may more clearly appear, it is necessary that it be understood that all the lighter products of the destructive distillation of coal and petroleum known in commerce and the arts as petroleum ether, gasolene, benzene, naphtha, &c., have, even in the lightest and purest form obtainable for use in the arts, a certain rank and offensive odor, which odor greatly detracts from the value and usefulness of the lighter products of petroleum, especially as they are largely used as solvents, and the offensive odor is to a certain extent retained by the substances even after the complete evaporation and separation of this solvent. To remove from these lighter products of the destructive distillation of coal or petroleum a large and appreciable proportion of this disagreeable and damaging odor, and thereby greatly increase the value of products resulting from their use as solvents, is the object of our present invention.

We will describe a process embodying our invention and an apparatus for carrying out the same, and then point out the novel features in the appended claims. 1

Reference is to be had to the accompanying drawing, forming a part of this specification, in which the figure is a sectional elevation of an apparatus that may be employed for carrying out our process.

The apparatus comprises a heating-cylinder 1, in the lower portion of which is arranged a coil of pipe 2, through which a heating medium, such as steam, is designed to pass. This pipe 2 has a valve-controlled inlet 3 and a valve-controlledoutlet 4. Arranged in the upper portion ohthe cylinder 1 and extended ,tainer 7 by means of a pipe 13.

longitudinally thereof is an inlet-pipe 5, provided with perforations throughout its length and having'a valve-controlled inlet 6.

Arranged near the cylinder 1 is a charcoalcontainer 7, within which bone charcoal is placed. Preferably this container 7 will be provided with a number of perforated partitions 8, thus forming the container into a number of communicating chambers. The object of the partitions S is to prevent the charcoal from packing by its own weight. A valve-controlled pipe 9 communicates with the interior of the cylinder 1 at its top portion and communicates with the interior of the container 7 at its lower end, and this container 7 may have a valve-controlled outlet 10, through which condensation may be drawn oif should any accumulate in the container.

Arranged near the container 7 is a limewater cylinder 11, having a valve-controlled outlet 12 and communicating with the con- The said pipe 13 enters the upper end of the container 7 and is extended downward in the cylinder 11 nearly to its bottom, and at the lower end the pipe 13 is turned in a horizontal direction and provided with a number of perforations, as indicated at let. The cylinder 11 is provided with a suitable water-gage 15, and a pipe 16 leads from the upper portion of the cylinder to a condensing-coil 17, arranged in a condensing-chamber 18. Arranged above the'plane of the cylinder 11 is a lime-water tank 19, having a valve-controlled pipe 20, leading into the cylinder 11. The tank 19 is designed to contain a saturated solution of quicklime intended for replenishing the amount of lime-water in the cylinder 11.

The operation is as follows: A heatingmedium-such, for instance, as steamis admitted to the pipe 2, and then the solventthat is, any of the lighter products of the destructive distillation of coal or petroleum to be treated is admitted to the pipe 5, from which it discharges in small jets onto the hot pipe 2, which quickly changes the solvent to vapor, and during this process a sufficient pressure is generated to force the vaporized solvent through the machine. The vapor passes from the cylinder 1 into the container 7, and

thence upward through the charcoal therein,

and thence downward through the pipe 13, and discharges through the perforations 14 into the cylinder 11, which has been previously charged with lime-water. will rise through the lime-water and discharge through the pipe 16 into the condenser 17, from which it may be drawn off in any desired manner. Of course the condenser-pipe 17 will be immersed in water of any convenient temperature below 55 Fahrenheit.

We find in practice that the passage of the vaporized solvent through the bone charcoal, as described, frees the solvent from a large portion of its offensive odor and that the further passage of the vaporized solvent through the lime-water, as described, eliminates from the solvent a further appreciable proportion of the offensive odor, so that the refined solvent after being carried through the entire process is greatly enhanced in value and usefulness.

Although we have shown and described an apparatus by means of which our process may be best carried out, we do not limit ourselves to the precise construction and arrangement shown.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. A process of deodorizing oil, consisting in first reducing the oil to a vapor, then passing said vapor through charcoal, then through lime-water, and then condensing said vapor, substantially as specified.

2. An apparatus for deodorizin g the lighter products of coal or petroleum, comprising a The vapor,

heating-cylinder in which the material under treatment is to be vaporized, a container for charcoal having communication with said cylinder, a lime-water cylinder communicating with the container, and a condenser communicating with said lime-water cylinder, substantially as specified.

3. An apparatus for deodorizin g the lighter products of coal or petroleum, comprising a heating-cylinder, a perforated inlet-pipe in said cylinder, a heating-coil in said cylinder, a container for charcoal, a perforated transverse partition in said container, a pipe connection between the upper portion of the cylinder and the lower portion of the container, a lime-water cylinder, a pipe leading from the upper part of the charcoal container through the wall of the lime-Water cylinder and nearly to the bottom thereof, the lower portion of said pipe being provided with perforations, a condenser communicating with the upper portion of the lime-water cylinder, and a supply-tank having a pipe communication with the interior of the lime-water cylinder, substantially as specified.

4. A process of deodorizing the light products of oil consisting in first passing the same in the form of a vapor through charcoal and subsequently subjecting it to the action of lime, substantially as described.

JAMES R. VVHITING. \VILLIAM A. LAl/VRENCE.

Witnesses J N0. M. BITTER, C. R. FERGUSON. 

